mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-01-07 12:10:52 -06:00
126 lines
4.5 KiB
C++
126 lines
4.5 KiB
C++
// * Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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// * software and associated documentation files (the "Software"), to deal in the Software *
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// * without restriction, including without limitation the rights to use, copy, modify, *
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// * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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// * permit persons to whom the Software is furnished to do so, subject to the following *
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// * conditions: *
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// * *
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// * The above copyright notice and this permission notice shall be included in all copies *
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// * or substantial portions of the Software. *
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// * *
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// * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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// * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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// * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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// * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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// * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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// * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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// ****************************************************************************************/
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#include <modules/iswa/rendering/cygnetplane.h>
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#include <openspace/engine/openspaceengine.h>
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#include <openspace/rendering/renderengine.h>
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#include <openspace/util/time.h>
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#include <openspace/util/spicemanager.h>
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namespace openspace{
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CygnetPlane::CygnetPlane()
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:ISWACygnet()
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,_quad(0)
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,_vertexPositionBuffer(0)
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,_planeIsDirty(true)
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{}
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CygnetPlane::~CygnetPlane(){}
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bool CygnetPlane::initialize(){
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ISWACygnet::initialize();
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glGenVertexArrays(1, &_quad); // generate array
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glGenBuffers(1, &_vertexPositionBuffer); // generate buffer
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createPlane();
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if (_shader == nullptr) {
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// Plane Program
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RenderEngine& renderEngine = OsEng.renderEngine();
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_shader = renderEngine.buildRenderProgram("PlaneProgram",
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"${MODULE_ISWA}/shaders/cygnetplane_vs.glsl",
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"${MODULE_ISWA}/shaders/cygnetplane_fs.glsl"
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);
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if (!_shader)
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return false;
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}
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}
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bool CygnetPlane::deinitialize(){
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ISWACygnet::deinitialize();
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glDeleteVertexArrays(1, &_quad);
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_quad = 0;
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glDeleteBuffers(1, &_vertexPositionBuffer);
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_vertexPositionBuffer = 0;
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RenderEngine& renderEngine = OsEng.renderEngine();
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if (_shader) {
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renderEngine.removeRenderProgram(_shader);
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_shader = nullptr;
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}
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return true;
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}
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bool CygnetPlane::isReady(){
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bool ready = true;
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if (!_shader)
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ready &= false;
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if(!_texture)
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ready &= false;
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return ready;
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}
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void CygnetPlane::render(){}
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void CygnetPlane::update(){
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ISWACygnet::update();
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_time = Time::ref().currentTime();
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_stateMatrix = SpiceManager::ref().positionTransformMatrix("GALACTIC", _frame, _time);
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_openSpaceUpdateInterval = Time::ref().deltaTime()*_updateInterval;
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if(_openSpaceUpdateInterval){
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if((_time-_lastUpdateTime) >= _openSpaceUpdateInterval){
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updateTexture();
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_lastUpdateTime = _time;
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}
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}
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}
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void CygnetPlane::createPlane(){
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// ============================
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// GEOMETRY (quad)
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// ============================
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const GLfloat x = _modelScale.x/2.0;
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const GLfloat y = _modelScale.z/2.0;
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const GLfloat w = _modelScale.w;
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const GLfloat vertex_data[] = { // square of two triangles (sigh)
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// x y z w s t
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-x, -y, 0, w, 0, 1,
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x, y, 0, w, 1, 0,
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-x, y, 0, w, 0, 0,
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-x, -y, 0, w, 0, 1,
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x, -y, 0, w, 1, 1,
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x, y, 0, w, 1, 0,
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};
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glBindVertexArray(_quad); // bind array
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glBindBuffer(GL_ARRAY_BUFFER, _vertexPositionBuffer); // bind buffer
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glBufferData(GL_ARRAY_BUFFER, sizeof(vertex_data), vertex_data, GL_STATIC_DRAW);
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glEnableVertexAttribArray(0);
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glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(0));
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glEnableVertexAttribArray(1);
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glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(GLfloat) * 6, reinterpret_cast<void*>(sizeof(GLfloat) * 4));
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_planeIsDirty = false;
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}
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} //namespace openspace
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